Question

How to solve 8x^3+1=0

Answer 1

8x^3 + 1 = 0   
8x^3 = -1      <----------- Step 1: Subtract 1 from both sides.
x^3 = -1/8     <----------- Step 2: Divide both sides by 8.
x = ∛(-1/8)    <----------- Step 3: Cube root both sides
x = -0.5         <----------- This is the final answer when you plug the last step into                                            the calculator